Radiator



' A 1,639,172- Aug. 16, 1927. P v. FORCADA RADIATOR Filed Nov. 26. 1924Patented Aug. 16,' 1927.

UNITED STATES ]?EDRO VILARDELL FORCADA, OF BARCELONA, SPAIN.

RADIATOR.

Application led November 26, 1924, Serial No. 752,453, and in SpainJanuary 31, 1924.

light weight, stronger and less liable to be damaged than those known upto the present time, on account of the reduced number of welds which itcomprises and to the fact that the tubes which constituted the radiatormay have very strong walls.

Finally, another advantage is that the said radiator is of simple andconsequently economical construction, and that any repair which it maybe necessary to make to these radiators is in all cases easily carriedout.

A form of construction of the radiator according to the invention isillustrated diagramatically by way of example in the acf companyingdrawing in which:

Fig. 1 is a part of a radiator core member.

Fig. 2 is a form of construction ofthe radiator.

In Fig. l is shown the shape of one constituent member of the radiator,this member consisting of a tube l, coiled in the form of a helix, thediameter of which may be varied, as may be the section and size of thetube, and the metal or alloy of which it is made. l

Similarly, the above mentioned tube may be coiled so that the crosssection of the member formed will be an ellipse, an oval, a. polygon orany other suitable shape.

The following will also vary: the general shape of the radiator, that ofits frame or armature, the material from which it is constructed, andthe manner in which the said members are attached, to it, as well as thenumber of these members which enter into the constructionof eachradiator.

These constituent helical members are interlaced or intertwined byadvancing one member into the adjacent member in the manner of a screwas will be seen on reference to Figure 2. Straight tubes 3 are thencombined with the helical tubes by passing same longitudinally throughthe spaces formed within the helical tubes.

In Figure 2 the straight tubes are shown as passing through thelenticular spaces formed by the interlacing of adjacent helical tubes.By such a construction the radiator is strengthened and a greatercooling sur-V face results therefrom.

l. A radiator core for use with the cool ing system of automobileengines and the like, including a series of substantially parallelinterlaced helical tubes in combination with straight tubes passinglongitudinally through the lenticular spaces formed by the interlacedhelical tubes and lying ycontiguous to said helical tubes, all of saidtubes being adapted to convey water, and thestraight tubes functioningto strengthen the interlaced helical tubes.

2. In a radiator core for the cooling sys Y tem of automobile enginesand the like, a series of substantially parallel interlaced helicaltubes in combination with straight tubes passing longitudinally throughthe lenticular spaces formed by adjacent helical tubes, each of saidstraight tubes engaging a plurality of the convolutions of said helicaltubes to strengthen the latter, and all of said tubes being adapted toconvey the cooling liquid.

In testimony whereof I have signed my name to this specification.

PEDRO VILARDELL FORGADA.

